<template xmlns:v-slot="http://www.w3.org/1999/XSL/Transform">
    <a-layout>
        <a-layout-content
                :style="{ background: '#fff' ,padding: '24px', margin: 0,minHeight: '280px' }"
        >
            <p>
                <a-form layout="inline" :model="param">
                    <a-form-item>
                        <a-button type="primary" @click="handleQuery()">
                            查询
                        </a-button>
                    </a-form-item>
                    <a-form-item>
                        <a-button type="primary" @click="add()">
                            新增
                        </a-button>
                    </a-form-item>
                </a-form>
            </p>
            <a-table
                    :columns="columns"
                    :row-key="record => record.id"
                    :data-source="level1"
                    :loading="loading"
                    :pagination = "false"
            >
                <template #cover="{ text: cover }">
                    <img v-if="cover" :src="cover" alt="avatar"/>
                </template>
                <template v-slot:action="{ text, record }">
                    <a-space size="small">
                        <a-button type="primary" @click="edit(record)">
                            edit
                        </a-button>
                        <a-popconfirm
                                title="删除后不可恢复，确认删除?"
                                ok-text="是"
                                cancel-text="否"
                                @confirm="handleDelete(record.id)"
                        >
                            <a-button type="danger">
                                删除
                            </a-button>
                        </a-popconfirm>
                    </a-space>
                </template>
            </a-table>
        </a-layout-content>
    </a-layout>

    <a-modal
            title="分类表单"
            v-model:visible="modalVisible"
            :confirm-loading="modalLoading"
            @ok="handleModalOk"
    >
        <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{span: 18}">
            <a-form-item label="名称">
                <a-input v-model:value="category.name"/>
            </a-form-item>
            <a-form-item label="父分类">
                <a-select
                        v-model:value="category.parent"
                        ref="select"
                >
                    <a-select-option :value="0">
                        无
                    </a-select-option>
                    <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :disabled="category.id === c.id">
                        {{c.name}}
                    </a-select-option>
                </a-select>
            </a-form-item>
            <a-form-item label="顺序">
                <a-input v-model:value="category.sort"/>
            </a-form-item>
        </a-form>
    </a-modal>
</template>

<script lang="ts">
    import {defineComponent, onMounted, ref} from 'vue';
    import axios from 'axios';
    import {message} from "ant-design-vue";
    import {Tool} from "@/util/tool"

    export default defineComponent({name: 'AdminCategory', setup() {
            const param = ref();
            param.value = {};
            const categorys = ref();


            const loading = ref(false);
            const columns = [

                {
                    title: '名称',
                    dataIndex: 'name'
                },
                {
                    title: '父分类',
                    key: 'parent',
                    dataIndex: 'parent'
                },
                {
                    title: '顺序',
                    dataIndex: 'sort'
                },
                {
                    title: 'Action',
                    key: 'action',
                    slots: {
                        customRender: 'action'}
                }
            ];

            /**
             * 一级分类树，children属性就是二级分类
             * [{
             *   id: "",
             *   name: "",
             *   children: [{
             *     id: "",
             *     name: "",
             *   }]
             * }]
             */
            const level1 = ref(); // 一级分类树，children属性就是二级分类

            /**
             数据查询
             **/
            const handleQuery = () => {
                loading.value = true;
                //如果不清空现有数据，则编辑保存重新加载数据后,再点编辑
                level1.value=[];
                axios.get("/category/all").then((response) => {
                    loading.value = false;
                    const data = response.data;
                    if(data.success) {
                        categorys.value = data.content;
                        console.log("原始数组：", categorys.value);

                        level1.value = [];
                        level1.value = Tool.array2Tree(categorys.value, 0);
                        console.log("树形结构：", level1);
                    }else{
                        message.error(data.message);
                    }

                });
            };



            // -----表单--------
            const category = ref({});
            const modalVisible = ref(false);
            const modalLoading = ref(false);
            const handleModalOk = () => {
                modalLoading.value = true;
                axios.post("/category/save",category.value).then((response)=>{
                    modalLoading.value = false;
                    const data = response.data;
                    if(data.success){
                        modalVisible.value = false;

                        //重新加载列表
                        handleQuery();
                    }
                    else{
                        message.error(data.message);
                    }
                });
            };

            // 编辑
            const edit = (record: any) =>{
                modalVisible.value = true;
                category.value = Tool.copy(record);
            };
            // 新增
            const add = () =>{
                modalVisible.value = true;
                category.value = {};
            };
            const handleDelete = (id: number ) =>{
                axios.delete("/category/delete/" + id).then((response)=>{
                    const data = response.data;
                    if(data.success){
                        //重新加载列表
                        handleQuery();
                    }
                });
            };

            onMounted(() => {
                handleQuery();
            });

            return {
                param,
                level1,
                columns,
                loading,
                handleQuery,

                edit,
                add,
                handleDelete,

                category,
                modalVisible,
                modalLoading,
                handleModalOk
            }
        }
    });
</script>

<style scoped>
    img {
        width: 50px;
        height: 50px;
    }
</style>